Method and equipment for transferring light-emitting particles, display substrate and device

Abstract

The invention provides a method and equipment for transferring light-emitting particles, a display substrate and a device. The transferring method comprises the following steps: providing a substratewith an inorganic light-emitting material sheet; cutting the inorganic light-emitting material sheet to form a plurality of light-emitting particles; heating the substrate on which the light-emittingparticles are formed, and expanding the substrate after heating to separate the plurality of light-emitting particles by a predetermined distance; aligning and laminating the substrate on which the separated light-emitting particles are formed with a driving back plate, and transferring the light-emitting particles to the driving back plate, wherein the driving back plate comprises a plurality ofpixel circuits which are in one-to-one correspondence with the light-emitting particles; and removing the substrate. The method is easy to implement, the light-emitting particles and the positions ofthe pixel circuits on the driving back plate can be ensured to be in one-to-one correspondence, the operability is high, and the mass production of the inorganic light-emitting diode display substrateis facilitated.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a transfer method, equipment, display substrate and device of luminescent particles. Background technique [0002] Nowadays, organic light-emitting diode (OLED) technology is developing rapidly, but organic light-emitting diodes use organic light-emitting materials, which have a very short lifespan and are easily corroded by air and water, so it is necessary to seek inorganic light-emitting materials to replace it. [0003] At this stage, inorganic light-emitting diodes are still in the laboratory stage, mainly because their transfer technology is not very operable and cannot be industrialized quickly. The traditional transfer technology of inorganic light-emitting diode particles is pick and place (chip) transfer technology. This technology mainly sprinkles inorganic light-emitting diode particles on the surface of the driving backplane, and makes the inorganic light-emitting d...

AI Technical Summary

Problems solved by technology

[0004] In view of this, the present invention provides a method, equipment, display substrate and device for transferring luminescent particles, which are used to solve the problem of poor operability of the existing transfer technology of inorganic light emitting diodes

Images